#./config  Linux-x86_64.cuda --charm-arch net-linux-x86_64 --with-fftw3 --with-cuda --cuda-prefix /usr/local/cuda 
# arch/Linux-x86_64.cuda
./config  Linux-x86_64-g++.arch \
--charm-base /net/bigbird/cm/2/donmoore/NAMD_2.9_Source/charm-6.4.0 \
--charm-arch multicore-linux64 \
--with-tcl \
--with-fftw3 \
--with-cuda \
--cuda-prefix /usr/local/cuda 
